<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        function getMax(num,num1){
            return num>num1? num:num1;
        }
        var one = prompt(`请输入第一个值`);
        var two = prompt(`请输入第二个值`);
        var max = getMax(one,two);
        alert(`${max}更大！`);
    </script>
</head>
<body>
    
</body>
</html>